3.1 This guide directs the user to test methods that determine properties generally accepted as standard test items for classification of epoxy resins.

1.1 This guide covers methods for testing epoxy resins as listed in Table 1. All of the methods were tested by interlaboratory participation in accordance with usual ASTM guidelines. Each method specifies a recommended amount of sample for starting a separate analysis, but several of the procedures can be conducted on the same starting material if so desired. For example, viscosity, color, and density could be run on the same specimen.

TABLE 1 Methods for Testing Epoxy Resins

Test Method

Section

ASTM Designation

Epoxy content

 4

 D1652

Hydrolyzable chlorine

 5

 D1726

Total chlorine

 6

 D1847

Viscosity

 7

 D445, D1545

Color

 8

 D1544, D1209

Density

 9

 D1475

Nonvolatile content

10

 D1259

Acid value

11

 D1639

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.